Does Monkey Whizz Work At Concentra

Passed a 10 panel without issue. I ended up strapping the bag to my inner thigh next to my sack and it kept it the right temp. The only issue was the stick on temp sensor reads high. They offered monkey whizz belt one time use, and told me it was by far their best selling item for the last 5y. I came home and was happy to read positive reviews from others.

I went to a local head shop and they suggested synthetic. They only one carry monkey whizz. Does anyone have any experience using monkeywhizz? I have had multiple friends use it for union randoms, but i only used real clean urine in the past. I've heard monkey whizz is a legitimate product. I've never personally used it. My california buddy has been using quickfix for dot tests for 20 years and never failed if that means anything.